Skip to main content

isGreater()

isGreater<T>(threshold): (value) => boolean

Creates a predicate function that determines if a value is greater than a threshold.

Type Parameters​

T​

T extends string | number

The type of the values (number or string)

Parameters​

threshold​

T

The threshold value to compare against

Returns​

(value): boolean

Parameters​

value​

T

Returns​

boolean

Remarks​

  • Pure function with no side effects
  • Uses JavaScript's > operator for comparison
  • Works with both numbers and strings (lexicographic comparison for strings)
  • Useful for array filtering and functional composition

Example​

const isGreaterThan10 = isGreater(10);
isGreaterThan10(15); // true
isGreaterThan10(5);  // false

const isAfterM = isGreater('M');
isAfterM('Z'); // true
isAfterM('A'); // false

// Useful with arrays
const numbers = [1, 5, 10, 15, 20];
const greaterThan10 = numbers.filter(isGreater(10)); // [15, 20]